Pfizer Chair and CEO Albert Bourla said the company anticipates it will have safety and efficacy data from phase 3 trials of its COVID-19 vaccine available by the fall, perhaps as early as September, in time for a potential FDA approval or authorization in October. If the vaccine proves to be safe and effective and FDA gives it the go-ahead, Pfizer will likely be able to have hundreds of millions of doses of the vaccine available by the end of...